Car door construction



M y 1933- K J. TOBIN ET AL CAR DOOR CONSTRUCTION Filed Dec. 13, 1929 Patented May 30, 1933 I FFICE KENNETH J. TOBIN AND WILFRED A. BEAUCHAMP, OF CHICAGO, ILLINOIS, ASSIGNORS T0 CAMEL COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS CAR DOOR CONSTRUCTION Application filed December 13, 1929. SeriaI'No. 413,745.

This invention relates to car door construction and more particularly to improvements in the construction of auxiliary doors used in double door construction for box cars adapted for transporting automobiles and other bulky lading.

The present invention relates to improvements over the car door construction illustrated in a patent to Barrows, No. 1,698,118, granted January 8, 1929. It will be noted that the Barrows patent utilizes door panels which are not similarly formed at their vertical edges. Thus there is only half a vertical corrugation on the side adjacent the main door. Furthermore the metal angle member connected to the panels as shown in the Barrows patent is not braced against turning movement in the improved manner described with reference to the present invention.

It is an object of the present invention to provide an improved construction of an auxiliary door which will give increased strength and rigidity and resist the thrusts which occur in use.

It is further an object of the present improvements to improve upon the construction of auxiliary car doors whereby the corrugated door sheets may be made of similar formation at both of their vertical edges.

An additional object of the present invention consists in strengthening the vertical edge of the auxiliary door which comes into engagement with the main door by forming a post member with an extension seating into and secured to a vertical corrugation of the door panel.

Another object of the invention comprises securing the vertical post to the vertical corrugation of the door panel, and providing bracing means on both sides, the inner bracing means comprising a strip secured both to the post and panel and the outer bracing means comprising a strip secured to the post and mar inal ed e of the Janel which is in addition swaged to overlap the edge of the main door and serve as a thrust receiving portion and a weathering protection or guide.

' Other objects will be more readily apparent and more fully described in the following description taken in connection with the attached drawing, in which:

Figure 1 is a side elevation of a portion of car, showing the main and auxiliary doors;

Figure 2 is a transverse horizontal section taken on the plane indicated by 22 in Figure l and illustrating in detail the improved construction.

Referring first to the general view, Figure 1, in which the construction is mainly of the usual form, 1O is the car side having mounted in association therewith a main door A and an auxiliary door B, the doors being of the usual sliding construction. The doors as shown are of the bottom-hung type, but it will be understood that the present described improvements are applicable to other forms of doors. There is provided a bottom sill 12 having attached thereto spaced brackets 1 1 which support atrack 16. A pair of roller supporting brackets 18 are attached to the bottom edge of each door and are provided with rollers 20 to guide and support the doors in their travel upon the track. The brackets include downward extensions 22 which cooperate with the track to limit inward movement of the lower edges of the doors. A door lintel 24 is provided at the upper portion of the door opening and has secured thereto a depending flange 26 which overlaps the upper edges of the doors and cooperates with a pair of brackets 28 which are secured to the upper portion of each of the doors. Any customary locking means, such as shown at 30, may be provided for holding the doors in closed position. The main door A includes sheet metal panels 32 formed with horizontal corrugations 34C and vertical corrugations 36 adjacent the side edges. The vertical edge of the main door which comes into association with the auxiliary door is strengthened by the plate 38 which covers the vertical corrugation 36 and is fastened to the panel 32 at its rear edge by rivets 40. The forward edge of the strengthening plate 38 is bent to overlap the edge of the panel 32 as shown by the overlapping portion 42 which thereby forms a three-ply construction held together by the rivets 44. As additional strengthening means for the edge of the door, there may be provided the U- shaped stiffening bar l6, seating within the vertical corrugation 36 and fastened by the rivets 48.

The auxiliary door B includes corrugated panels 50 of identical construction with that of the panels 32 of the main door and has the horizontal corrugations 52 and vertical corrugations The distinction over previous designs for the panels of the auxiliary door is that both of the vertical edges are of similar shape, which makes for uniformity in manufacture. Therefore, according to the present invention, all of the sheets for forming the panels of the doors may be manufactured from the same dies. The vertical edge of the auxiliary door is of an improved construction by the formation of the post member and the stiffening member for the vertical corrugation in an integral jamb shown as 56. The member 56 includes the U-shaped portion 58, corresponding to the stiffening member 46 and adapted to fit into the vertical corrugation 54 and be secured thereto by rivets 60. The edge of the U-shaped portion 56 is formed to correspond with the side of the corrugation 5a and to lie flatly thereagainst as at 62, and thereby the stiffening portion in association with the vertical corrugation tends to brace the post against an impact applied thereto, and acts in addition to the usual bracing means consisting of the brace member 64, which is formed with one flange fastened to the door panel 50 by rivets 66 and the other flange fastened to the post 56 by rivets 68, the intermediate portion being inclined to act as a knee brace.

A wooden movable abutment member and filler post 70 is arranged in position to be secured to the web of the post 56. The inner edge of the post 56 is shown as bent parallel to the door as at 72 and a coopering strip 74 is shown, seating against the post 70 and the flange 72. An angle bar guide and stop member 76 is attached with one leg 78 held between the transverse leg of the post and the post 70 and may be secured by the same rivets 68 that attach the brace 6 The other leg 80 which is bent in the plane of the door panel is fastened to the marginal edge of the panel strip 50 by rivets S2. Immediately beyond the edge of the panel 50, the leg 80 is outwardly swaged as at 8% and bent to form a flange 86, which overlaps the edge of the main door A. Thus the force of the main door in closing against the auxiliary door will be transmitted directly to the angle member 76 and will not tend to shear the rivets 82, and there will be no tearing of the panel around the rivet holes. The extension of the jamb into association with the vertical corrugation will prevent opening or spreading between the attached portions of the panel and the angle bar stop member.

By forming the jamb member integral with a door stiffener in the manner described, the parts are automatically positioned in correct relation by seating the stiffening portion in the vertical corrugation. The jamb then assists in strengthening the door and the door in turn strengthens the jamb. By providing the bracing means on both sides of the web of the metal jamb resistance to rotation of the jamb by forces communicated from the wooden filler and nailing posts is secured. Furthermore the angle bar guide and stop member serves as an abutment for the main door and prevents shearing of the rivets and also acts as a guide and weathering protection. All of the above advantages are secured with the use of door panels similar in shape at opposite sides which makes for economy in manufacture.

Various modifications may be resorted to without departing from the spirit of the invention as expressed in the appended claims.

We claim:

1. In combination a corrugated sheet metal door having a corrugation parallel to an edge of the door said corrugation having side walls, each of which is inclined with respect to the main plane of the door and a metal door jamb, said door jamb having a web disposed transverse to the plane of the door and a stiffening portion integral with the door jamb, formed to fit in and be positioned by said corrugation.

2. In combination a corrugated sheet metal door having a corrugation parallel to an edge of the door, said corrugation having side walls, each of which is inclined with respect to the main plane of the door, a metal door jamb having its web disposed transverse to the plane of the door, a bracing member extending in an inclined posi tion between said door and the web of said door jamb, said door jamb having its web extending across the main plane of the door and a stifiening portion integrally formed with the door jamb curved to fit into said corrugation of the door, whereby the curved positioning portion of said door jamb engages the side walls of said corrugation to prevent rotation of the door jamb.

8. In a sliding door construction, a door including a corrugated sheet metal panel, having horizontal corrugations terminating at a vertical corrugation parallel to an edge of the door, a metal door jamb having the web thereof disposed transverse to the plane of the door, said jamb having integrally formed therewith a stiffening member cooperating with the corrugations of the door to resist rotation of the door jamb, an angle member secured to the web of the door j amb and to the marginal edge of the door panel said angle member including a portion formed to receive the thrust of an adjacent sliding door and to overlap the edge thereof.

4. In a sliding door construction, a corrugated sheet metal door panel, a metal post member secured to the door panel with its web disposed transverse to the plane of the door and bracing members arranged on opposite sides of the web of the metal post and secured both to the door panel and to the web of the metal post.

5. In a sliding door construction, a corrugated sheet metal door panel having a vertical corrugation disposed adjacent to an edge thereof, a metal post member formed to fit in and be positioned by said vertical corrugation and bracing members disposed on opposite sides of said web of the metal post and attached to the post and to the door panel.

6. In combination a corrugated sheet metal door, a metal post member having its web disposed transverse to the plane of the door, means securing said post member to the door panel, a bracing strip disposed on one side of the web of the post member and secured to said post member and to said door panel and an angle bar guide, disposed on the opposite side of web of said metal post and attached to the web of the post and to the marginal ed e of the door panel.

7. In a railway house car, in combination a slidable door and a movable door jamb rigidly secured to said door, said door jamb having its Web disposed transverse to the plane of the door and means bracing the door jamb on opposite sides of the web thereof to prevent rotation thereof relative to the door.

8. In a sliding door construction, a corrugated sheet metal door panel having a corrugation parallel to an edge of the door, the free edge of the door panel being disposed in the main plane of the door, a metal post member having its Web disposed transverse to the plane of the door and including an integral stiffening member for the door, said stiffening member being designed to seat in said corrugation, an angle bar bracing member secured to the free edge of the door panel and secured to the web of the post member and an additional bracing member disposed on the opposite side of the web of the post member and secured. to the door panel and to the post member.

9. In a sliding door construction, a cerrugated sheet metal door panel having a corrugation parallel to an edge of the door,

the free edge of the door panel being disposed in the main plane of the door, a metal post member having its web disposed transverse to the plane of the door and including an integral stiffening member for the door, said stiffening member being designed to seat in said corrugation, an angle bar bracing member secured to the free edge of the door panel and secured to the web of the post member and an additional bracing member disposed on the opposite side of the web of the post member and secured to the door panel and to the post member, said angle bar being bent to extend past the free edge of said door panel and form an abutment stop for an adjacent sliding door.

10. In combination, a corrugated sheet metal door having the opposite vertical margins of the door similarly formed, said door having a corrugation parallel to athrust receiving edge of the door, said corrugation having side walls, each of which is inclined with respect to the main plane of the door and a metal door jamb secured to said door, said door jamb having a web disposed transverse to the plane of the said door and a stiffening portion integral with the door jamb formed'to fit in and be positioned by said corrugation.

11. In combination, a corrugated sheet metal door having the opposite marginal edges similarly formed in the main plane of said door, said door having vertical corrugations parallel to the opposite vertical marginal edges and a metal door jamb, each of said corrugations having a pair of side walls inclined with respect to the main plane of said door, said door jamb having a Web disposed transverse to the plane of the door and a stiffening portion integral with the door jamb formed to lit in and be positioned by one of said vertical corrugations.

12. In a sliding door construction, a door including a corrugated sheet metal panel having horizontal corrugations terminating at a vertical corrugation parallel to an edge of said door, said last-mentioned edge of said door forming marginal flange in the main plane of said door, a metal door jamb having its web extending transversely to and across the main plane of said door, said door jamb including an integrally formed stiffening member adapted to fit in and be positioned by said vertical corrugation and abutting said horizontal corrugations to resist rotation of said door jamb, an angle member having a portion extending transversely to the main plane of saic door and secured to said door jamb and a portion extending parallel to the plane of said door and secured to the marginal edge of said door panel, said angle member being formed to receive the thrust of an adjacent sliding door.

Signed at Chicago, Illinois, this 3rd day of December, 1929.

KENNETH J. TOBIN. WILFZREI) A. BEAUCHAMP. 

